buatlah bilangan-bilangan sampai 300 menggunakan angka-angka 7 9 1 4 2

1, 2, 4, 7, 9, 12, 14, 17, 19, 21, 24, 27, 29, 41, 42, 47, 49, 71, 72, 74, 79, 91, 92, 94, 97, 124, 127, 129, 142, 147, 149, 172, 174, 179, 192, 194, 197, 214, 217, 219, 241, 247, 249, 271, 274, 279, 291, 294, 297